While this may have worked in a simpler era of Yu-Gi-Oh , this is impossible in the modern day, as the game has progressed past this practice, and the strategy often backfires by lowering the consistency of the deck
The other way of acquiring cards is through rental decks
A special section of older counterfeits have been dubbed, "Dark Beta" which was done by a former Carta Mundi employee after normal work hours
Hes been subject to a massive nerf that has increased his Ink cost, removed his Ward keyword, and altered his ability so that players must Shift Floodborn characters to trigger his discard
Shamanic Revelation, Hunter's Insight, Disciple of Freyalise, and Garruk, Primal Hunter all fall into this category (although Garruk can potentially draw cards several times if your foe's let you)
If they didnt reveal a card this way, you draw a card